What action does the aircraft take if it goes below the initial lost link altitude (ILLA)?

When an aircraft goes below the Initial Lost Link Altitude (ILLA), it establishes a specific protocol for re-establishing communication with its control station. Turning toward the lost link heading is crucial as it allows the aircraft to attempt to reconnect while following a predetermined, safe course. This action is informed by the need to maintain altitude control and situational awareness, ensuring the aircraft can potentially regain contact and resume its mission.

This operational response is designed to help the aircraft avoid entering unsafe terrain or situations while it attempts to re-establish communication. The lost link heading provides a reliable navigational reference to ensure safety during an uncertain situation. Thus, utilizing this heading maximizes the chances of recovery, ensuring the aircraft operates within a known, predictable flight path until it can reconnect.